Means for slitting and winding paper from paper-making machines



May 20, 1930. P. D. PARSONS 1,759,627

MEANS FOR SLITT'ING AND WINDING PAPER FROM PAPER MAKING MACHINES Filed-Aug. 8, 1924 Inventor P/u'nja Di Hausa/rs.

Patented May 20, 1930 UNITED STATES PATENT I OFFICE PHILIP D. PARSONS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO SCOTT PAPEN COMPANY, A CORPORATION OF PENNSYLVANIA I MEANS FOR SLITTING AND WINDING PAPER FROM PAPER-FIAKING- IIACEINES Application filed August 8, 1924. Serial No. 730,830.

' Heretofore it has been the practice in paper making to wind the web leaving the last drying cylinder of a paper making machine into a single large roll upon a central core or cylinder having extended ends constituting journals, subsequently severing the paper web and starting it to wind upon a second core or cylinder, and at this time transferring the fully wound paper roll to' a separate machine for slitting and rewinding; and during the rewinding operation, trimming and slitting the web into desired widths of roll for subsequent treatment in making articles such as towels and napkins, for example; and further, during the transfer and rewinding of the paper roll, separately transferring the new roll be ing wound with the paper from the drying cylinders to the journal supports formerly employed for the paper roll which is transferredto the trimming, slitting and rewinding machine, and thereafter repeating the operation.

Machines for carrying out the reeling operation for preparing the web into a single roll are described in United States Letters Patent No. 1,248,542, dated December 4, 1917, and granted to C. E. Pope, and from this ma.- chine the paper roll has been transferred to a complicated independent machine for slitting and rewinding which I heretofore have constructed for trimming and dividing the single large roll into a plurality of rolls of the same diameter but of less length. The employment of this secondary trimming, slitting and rewinding apparatus is costly and involves much additional labor and handlin of the paper before the trimmed paper and plurality of smaller rolls are obtained.

The object of the present invention is to provide means for enabling the paper web 'to be trimmed, slit and formed into rolls of the-desired axial lengths, all as one operation upon the web as it. leaves the last drying cylinder of the paper making machine, said trimming and slitting taking place immediately before the act of winding the paper into roll form in the first instance, thereby entirely eliminating the use of the means for trimming, slitting and rewinding of the aper rolls together with. all of the labor an cost provement upon the Pope winding reel set out 1n Letters Patent No. 1,248,542, aforesaid, or a machine of that type in connection with paper making, by providing the reel thereof with preliminary slitting cutters for trimming the margins of the paper web prior to winding; and where a plurality of separate rolls are to be simultaneously formed, slitting the web accordingly, to provide the necessary narrower webs for making such rolls, it being further understood that where a plurality of such rolls are to be simultaneously formed, the mandrel upon which they are wound is desirably provided with a corresponding plurality oftubes or cores clamped or held end to end to rotate as a unit for being frictionally driven in following the general practice of the Pope reel equipment.

With these and other objects in view, my invention consists of means for carrying them into practice as more fullyset out hereinafter and defined in the claims.

Referring to the drawings: Fig. 1 is a side elevation of apparatus embodying my invention; Fig. 2 is a plan view of the same; Fig. 3 is a plan view of one of the receiving cylinders for the paper roll when being wound; Fig. 4 is an end view of one of the clamping collars; Fig. 5 is a vertical sectional view j showing the winding cylinder, mandrel and slitting cutters; and Fig. 6 is a side view of a modification of the slitting means.

Referring more particularly to the details of the apparatus embodying my invention,

as shown in Figs. 1, 2, 3 and 4, A is the last of thedrying cylinders of the paper making machine or other e uivalent apparatus. B is the guide about w ich the paper P passes on its way to the slitters and winding means embodying my improvements; 2 is the body or main frame of the winding means and is drum 3 and between it and the guide B, are

journaled the slitting cylinder and disk cutters which may be of any suitable construction. As shown, they comprise a cylinder 7" and a shaft 7 b having the slitting cutters 7 in disk form. The cylinder 7? and the shaft 7 of the cutters are geared together at 8 so that they revolve at the same surface speeds and act upon the paper web passing the paper web travels and between them. Immediately in front of the slitting cutters is a guide between which and the guide B there may be longitudinal guide bars 6 forming a gratin against which guided to the slitting cutters. The cylinder nection thus madebetween the drum andthe slitting means insuring the surface speeds of the slitting cutters and the drum to be the same. At each end of the drum 3 is a" frame 16 having a pivotal axis at 17 above the journal 4 of the drum and the upper end of I each of theseframes is formed with a fork or jaw 15 in which a box 14 may detachably fit, said boxes providing bearings for the shaft 13 of the winding tubes 12 and 12", as more fully illustrated in Fig. 3. In this construction, the box bearings 14 are adjustable radially. in the forked portion of the frame 16 whereby such boxes in connectlon with'the tube shaft 13 may be inserted or removed in the frame 16as carriers and which .also permits automatic adjustment radially when the tubes are being wound with paper.

, These frames 16 are provided with segmental radial arms 21. The radial arms 21 are secured toa transverse shaft 21 having a hand wheel 23 by which it may be adjusted when desired. The shaft 21 is journaled'in the main frame at 21,arranged to the rear of the drum 3 and also to the rear of the shaft 20 so that the free ends of the radial arms 21 may swing toward or from the upper portion of the drum 3. The upper ends of these arms 21 are formed with forked bearings 22 which are so shaped as to be adapted to receive the shaft 13, just inside of the boxes 14, when transferred from the frame 16 to the-radial arms 21. k

- It will be understood that when the parts are in the position shown in Fig. 1, the paper web P is being wound upon the cylinder 12 y which it is are geared together by the gearing 8. The gearing 8 is geared by anv intermediate gear 9- with a gear 10 "on the shaft of the drum 3, the transmitting concomposed of the tubes 12* and 12", the periphery of the paper roll H being formed thereon resting in frictional contact with the surface of the drum 3 and whose rotation causes the paper roll to be rotated to a gradually increasing diameter and until it has reached its maximum size. During this operation, the supporting arms 21 also swing backward due to the increasing diameter of the paper roll. While this operation is going on, the frames 16 may be moved back to their original positions shown in Fig. 1 by means of the racks and pinions before referred to, the same being operated by means of the hand wheel 20. At this time there is no cylinder 12 and its shaft journaled in bearings in the upper part of the frame 16, but such cylinder is required to be lifted into place as shown in Fig. 1 just before the completion of the paper roll H, so that when the paper web adjacent to the paper roll is required to be severed, the free end of the paper web thus provided must be pressed over the 'cylinder 12 to attach itself to said cylinder as a core and by which the next operation for making the paper roll is started. The severing of the paper web between the paper roll H and the receiving cylinder 12 may be effected by a blast of air under the paper web or by any other suitable means WhlCl'l will sever the web. Ordinarily, the paper may be separated by the air blast just as is explained in United States Letters Patent No. 1,248,542 of December 4, 1917, aforesaid.

It will be understood that during the reeling or winding operation of the paper about the cylinder 12 to constitute the paper roll H, that the paper web passing from the dryer A and over the guiding means B and 6 is'slit at the middle and also adjacent to the edges of the paper web, whereby the web is trimmed and at the time split longitudinally so that when the strips are .wound they will form rolls uponseparate core tubes 12 and 12, the said trlmming and slitting being accomplished preliminary to the winding of the paper on the tubes, and inthis manner obviating wholly the subsequent transfer of the untrimmed and unsht paper roll to the special slitting and rewindlng machines heretofore employed.

When the paper roll H is of the proper diameter, a suitable lift (not shown) engages the ends of the shaft 13 and lift-sthe roll from the radial arms 21 and removes it to any place desired. The arms 21 are, thereafter adjusted forward toward the revolving drum 3 and are once more in position for receiving the new cylinder 12 which is journaled in the forked ends 15 of the frames 16. Before the transference of the new cylinder, it'is manifeet that paper will be winding upon it, and

winding is always performed while the cylweb leaving the drying cylinders. Where the speed of the drumis slightly in excess, there is a frictional tendency to stretch the paper as it is being wound upon the cyhnders 12 and in that manner insure a tight roll being formed.

The construction of the winding cylinder and its connecting parts is best shown in Fig. 3, from which it will be seen that the shaft 13 is provided at each end of the box 14 in whlch it is journaled and by which it is supported in the forked ends 15 of the radial frames 16. Th h ft rovided with collars 13b e S a 18 p y p when assembled, constitute a single cylinder which the position of the boxes are assured and these boxes may, if desired, be of a size which will permit of them being drawn throughthe tubes 12 and 12 forming the cylinder 12, though, if desired, said boxes may be removable from the shaft 13 when it is desired to separate the rolls of paper each associated with its respective tubular core 12 and 12. It will be further seen that the shaft 13' is provided with plug portions 24 and 25 over and upon which the tubular parts 12' and 12 are arranged and supported, the plug 25 being longer than the plugs 24 as it supports the abutting ends of the two tubular core portions 12- and 12 Near one end of the shaft and adjacent to' one of the plugs 24 is a collar 26 secured to the shaft 13 and at the other'end and between'the plug 24 and the bearing block- 14, there is arranged a second collar 27 and a locking nut 28 screwed upon the shaft. 'The collar 27 may be slotted, as at 27*, Fig. 4, and may he slipped over the shaft23 before being clamped against the end i of the tubular core 12, by the nut 28. When 50 this is being done, tube 12 is clamped against the collar 26 while tube 12 is tightly abutted at 12 against the end of the tube 12 'and at the'same time the collar 27 and nut 28 are the clamping means fonthe outer end of the tube 12?. When the paper webs are wound upon these-tubes 12 and 12', they should be separated from the shaft 13 and its plugs, but with the respective tubes 12 and 12 remaining in the rolls as cores thereafter and by which they may be supported in other machines where they may be subjected to further treatment. To accomplish this, the nut 28 is loosened, the collar 27 is withdrawn and the shaft together with collar 26 and its plugs 24 and 25 and nut 28 and with or without its bearing 14, are withdrawn through the tubes 12 and 12". When this is done, the tubes will be entirely separated and it will have its own tubular core. New tubes are then assembled on the shaft 13 to reform the cylinder 12'and when thus formed it is once more in condition 'for utilization in the machine as before described. A

I have described myimprovements vas applied in connection with a type of winding device set out in Letters Patent No. 1,248,542,

aforesaid, but I do not restrict myself to the use of my improvements in connection with that particular type of machine, as my in vention comprehends the combination of-the drying cylinders of a paper making machine or its equivalent, a reeling mechanism to re an intermediate means for trimming and slitting the paper web after its delivery from the drying cylinders 'and before it reaches the winding or reeling means; and in the ceive the paper as rapidly as delivered and preferred form of my apparatus, the said J reeling means embodies a winding cylinder composed of a plurality of core tubes which,

but which subsequently may be separated so that part remains with one paper roll and part with another to constitute tubular cores thereof.

In place of driving the slitting cutters 7 and roll 7 by gearing as in Figs. 1 and 5, the

necessary friction of the cutters on the roller,

all as shown in Fig. 6. When inserting the paper the arms and cutters may bemoved away from the roller. i

By the employment of the improvements herein set out, there is very great saving in apparatus required, in the space occupied, in replacements and repairs, and in the number of operatives necessary for the production of a given number of rolls of paper in complete form with cores attached, as compared to what has heretofore been the practice.

In this application no claim is made to the method of simultaneously preparing duplicate rolls of paper'as herein set out and practiced with the use of the apparatus forming the subject matter of the present application, and neither do I claim herein the specific construction of the revolving drum upon which the plurality of rolls of paper are simultaneously wound, as these subject matters are basis of other applications.

I have descri ed my eimprove'd means in that particularity which I deem to be the best exposition of my invention, and that which I prefer in commercial practice, but I do not restrict or confine myself to the minor or ters of mechanical'skill and withouta departure from the spirit of the invention. v

Having now described my invention, what I claim as new and desire to secure by Let- I ters Patent is:

1. In a paper slitting and winding machine, the combination of guiding means over which the paper web is conveyed, with slitting mechanism for dividing the paper web into a plurality of narrower webs, a rotating drum over and in contact with which the plurality of narrower webs are caused to s1- multaneously travel, a multiple core rotatable member upon the several cores of which the plurality of narrower webs are respectively wound and in which the subdivision of the core is in alinement with the slitting mechanism whereby the two adjacent edges of the slit web "will be "received respectively upon the adjacent ends of the multiple core, means for temporarily supporting the rotatable member whereby it may move away from the drum while maintaining, the paper rolls upon it in contact with said drum and whereby friction is provided for rotating the member together with the paper rolls thereon, a second rotatable multiple core member arranged intermediate of the first mentioned rotatable multiple core member and the slitting devices, means for supporting the second rotatable multiple core member in rolling contact with the drum and the paper travelling thereon with freedom of movement toward or from said drumv whereby the paper web between the first and second rotatable members may e ruptured upon completion of the rolls upon the first rotatable member and the ruptured web wrapped'about the second rotatable member for starting. a second plurality of rolls, and means for moving the, support for the second rotatable member circumferentially about the drum for transferring it to the supporting means which temporarily support the first rotatable member. 2. In a aper slitting and windlng machine,

7 the combination of gulding means over which the paper web is conveyed, with winding mechanism for winding the paper web in roll form, and slitting mechanism for dividing the paper web into a plurality of narrower webs arranged between the guiding means and the winding means, and wherein further the winding means com rises a reyolving drum, a transverse shait having a plurality of tubular parts clamped thereon in end to end abutted relation and forming tubular cores for the respective rolls of paper formed from the plurality of webs after leavwit adjacent edges 0 the slit web will e receivedrespectively upon the adjacent ends of the abutting tubular cores, and means for supporting the shaft and the tubular parts parallel to the'rotating drum and permitting adjustment relatively to the same as the rolls increase in diameter by being frictionally driven by the drum.

3. In a paper slitting and winding machine, the combination of guiding means overwhich the paper web is conveyed, with winding mechanism for winding the paper web in roll form, and slitting devices for dividing thepaper web into a plurality of narrower webs arranged between the guiding means and the winding means, said slitting. devices comprising three pairs of slitting cutters, two pairs of which are arranged far apart to trim the lateral edges of the paper web and an intermediate pair provided for slitting the web into two narrower web portions, and wherein further, the said winding mechanism comprises a revolving drum, a transverse shaft "having thereon a plurality of tubular parts arranged end to end in abutting alinement axially and with thetsintermediate pair of slitting cutters whereby the two adjacent edges of the slit web formed by said intermediate pair of slitting cutters will be received respectively upon the adjacent ends of the abutting tubular cores upon which the respective webs of paper are wound, said tubular cores being detachable with respect to each other and to the transverse shaft whereby the rolls of paper may be separated and each with winding means, and wherein further,'the slitting devices comprise a plurality of pairs of slitting-cutters, two pairs arranged far apart a to trim the lateral edges of the paper web and intermediate cutters for slitting the web into a plurality of narrower web portions, and wherein further, the winding means comprises a revolving drum, a transverse shaft aving thereon a plurality of tubular parts arranged in alinement and constituting cores upon which the respective webs of paper are wound and in which the abutting ends of the tubular cores are in alinement with the intermediate slitting cutters whereby the'two adjacent edges of the slit web will be received respectively upon the adjacent ends of the abutting tubularcores, said tubular cores bein detachable with respect to the transverse sha t whereby the rolls of paper may be separated and each with its individual core, and means for supporting the transverse shaft whereby the paper rolls being formed thereon may be maintained in frictional contact with the revolving drum during their formation, and 1n which further, there is provided separate supporting means for a duplicate shaft w 1th tubular core parts intermediate of the shtting devices and the means for supporting the shaft upon which the paper rolls are beingwound, said separate supporting means adj ustable for transferring the shaft it supports into the custody of the supporting means for the shaft upon which the paper roll is being wound as soon as the paper rolls thereof are fully wound and removed whereby the machine may be continuous in its winding operations.

y 5. In a paper slitting and winding ma-' chine, the combination of guiding means over which the paper web is conveyed, combined with a revolving drum in contact with the surface of which the paper web is guided, two transverse shafts and separate supports therefor upon which the paper web is wound successively in forming consecutive rolls, means for guiding one'o f the shafts radially with respect to the drum to compensate for the gradually increasing diameter of the paper roll, means for adjusting the other of the shafts circumferentially about the drum for transferring its shaft to the supports first mentioned, a plurality of tubular core parts surrounding each of the shafts and in end to end alinement thereon, and means intermediate of the drum and the guiding means for slitting the paper web into a plurality of narrower webs immediately prior to their being wound upon the tubular core parts carried by the respective transverse shafts and in which the subdivision of the core parts in their end to end alinement is in alinement with the slitting means for the paper web whereby the two ad acent edges of the slit web will be received respectively upon the adjacent ends of the core parts, whereby when the rolls are fully Wound the withdrawal of the transverse shaft will provide a plurality of independent rolls each having a tubular core.

In testimony of which invention, I have hereunto set my hand.

PHJLIP D. PARSONS. 

